Representing a significant upgrade over the DAC built into the T20U amplifier, the petite UD-01 delivers powerhouse performance, especially when powered by the SLAP battery or KingRex PSU.

Its strongly musical 'non-digital-sounding' presentation is largely derived from the Burr-Brown OPA2604 which acts as an output stage preamp removing digital nasties and smoothly sculpting the analogue stream. This chip is socket mounted and can be upgraded or swapped out according to the user's preference. The primary chip is the Burr-Brown PCB2702E mated with a large internal buffer for audio packet storage.